Feeney D A, Johnston G R, Osborne C A, Tomlinson M J
Am J Vet Res. 1984 May;45(5):948-52.
Urethroprostatic reflux was found during retrograde urethrocystography in 21 of 24 mature healthy Beagles. Minimal parenchymal-positive contrast " blushes " near the urethra were identified, but no massive accumulations of contrast medium within the prostate were found. A particulate contrast medium, sterilized barium sulfate, was used in 12 of the dogs. After retrograde urethrocystography, the barium particles were found in the secretory (acinar) portion of the prostatic parenchyma, confirming that urethroprostatic reflux extended beyond the prostatic duct system that directly empties into the urethral lumen.
在逆行尿道膀胱造影检查中，24只成年健康比格犬中有21只发现了尿道前列腺反流。在尿道附近发现了最小限度的实质性阳性造影剂“红晕”，但未发现前列腺内有大量造影剂积聚。12只犬使用了一种颗粒状造影剂——灭菌硫酸钡。逆行尿道膀胱造影检查后，在前列腺实质的分泌（腺泡）部分发现了钡颗粒，证实尿道前列腺反流超出了直接排入尿道腔的前列腺导管系统。
